Spec Construction Co Inc

● Active — license status verified against CSLB public data as of November 6, 2026

CSLB license	#419626
Classifications	A — General Engineering · B — General Building · C-10 — Electrical · C-15 — Flooring and Floor Covering · C-17 — Glazing · C-20 — Warm-Air Heating, Ventilating and Air-Conditioning · C-33 — Painting and Decorating · C-35 — Lathing and Plastering · C-36 — Plumbing · C-39 — Roofing · C-4 — Boiler, Hot-Water Heating and Steam Fitting · C-8 — Concrete · C-9 — Drywall
Office of record	115 West Main St Ontario, CA 91762 Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)	(909) 947-4601
Contractor bond	$25,000 — Old Republic Surety Company
Workers' comp (CSLB record)	Workers' Compensation Insurance — Insurance Company Of The West
Business type	Corporation
License issued	March 16, 1982
License expires	August 31, 2027

Is this your business? Claim this listing to enhance it with your website, photos, and project details.

Data source: CSLB public records as of November 6, 2026. License status can change at any time — verify live at CSLB before signing a contract.